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The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
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The https:// ensures that you are connecting to the
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and transmitted securely.
Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1954 | 1 |
| 1956 | 1 |
| 1958 | 1 |
| 1962 | 1 |
| 1966 | 2 |
| 1968 | 4 |
| 1969 | 1 |
| 1973 | 1 |
| 1977 | 1 |
| 1979 | 3 |
| 1981 | 1 |
| 1982 | 3 |
| 1984 | 1 |
| 1986 | 1 |
| 1992 | 1 |
| 1993 | 1 |
| 1994 | 1 |
| 1995 | 1 |
| 1998 | 2 |
| 2008 | 1 |
| 2009 | 3 |
| 2010 | 2 |
| 2014 | 1 |
| 2015 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2022 | 1 |
| 2024 | 0 |